1698944974 has 4 divisors (see below), whose sum is σ = 2548417464. Its totient is φ = 849472486.

The previous prime is 1698944957. The next prime is 1698944993. The reversal of 1698944974 is 4794498961.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424736242 + ... + 424736245.

It is an arithmetic number, because the mean of its divisors is an integer number (637104366).

Almost surely, 2^1698944974 is an apocalyptic number.

1698944974 is a deficient number, since it is larger than the sum of its proper divisors (849472490).

1698944974 is an equidigital number, since it uses as much as digits as its factorization.

1698944974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849472489.

The product of its digits is 15676416, while the sum is 61.

The square root of 1698944974 is about 41218.2602010323. The cubic root of 1698944974 is about 1193.2362475417.

The spelling of 1698944974 in words is "one billion, six hundred ninety-eight million, nine hundred forty-four thousand, nine hundred seventy-four".